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№ 22 Wills & Estates

Alter Ego and Joint Partner Trusts in British Columbia

Aged 65 or older in British Columbia? See what alter ego and joint partner trusts are, how they defer tax, and what they do and do not do for probate.

Wills & Estates5 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 1, 2026
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Key takeaways
  • Both trusts must be created after 1999 by a settlor aged 65 or older.
  • Tax on accrued gains is deferred to the settlor's death, or the later death of settlor and partner, instead of the 21-year anniversary.
  • Whether a trust actually reduces probate depends on how assets are titled and how the trust is drafted, so get advice before transferring anything.

If you are 65 or older and own investments or a home, you may have heard that an alter ego or joint partner trust can reduce probate and defer tax. These trusts are real and recognized by the Canada Revenue Agency (CRA), but they come with strict conditions.

This article sets out what the federal rules require, how the tax deferral works, and what to think about for probate in British Columbia.

This article covers the law of British Columbia.

What the two trusts are

An alter ego trust (CRA code 336) is created after 1999 by a settlor aged 65 or older. The settlor must receive all the trust income during their lifetime and be the only person who can receive income or capital from the trust during that time.

A joint spousal or common-law partner trust (CRA code 335) is also created after 1999 by a settlor aged 65 or older. The settlor and their spouse or common-law partner receive all income until the later of their deaths, and only those two can receive income or capital before then.

Both are inter vivos trusts, meaning trusts that are not testamentary. A trust is not treated as an alter ego trust if it elects so on its T3 return for its first tax year.

A testamentary trust, by contrast, is generally created on and as a result of an individual's death. An estate can qualify as a graduated rate estate for only up to 36 months after death, and it must designate itself as one on its first T3 return for a tax year ending after 2015. These are different tools from the trusts in this article, so it helps to know which one someone is describing.

How the tax deferral works

Every trust is generally deemed to dispose of most capital property at fair market value on the day 21 years after the latest of January 1, 1972, the trust's creation day and certain other determined days. This is called the 21-year rule.

Alter ego and joint partner trusts are treated differently. The deemed disposition day is the death of the settlor for an alter ego trust, or the later death of the settlor and spouse or common-law partner for a joint partner trust, not the 21-year anniversary. Tax on accrued gains is therefore deferred to that death.

Special rules also apply to rollover transfers between certain trusts, including between alter ego trusts and between joint partner trusts. Moving property into or between trusts can trigger tax consequences, so an accountant should review any plan first.

Probate: what to ask

In BC, a deceased person's estate vests in the personal representative. Probate fees are based on the gross value of BC property in the Statement of Assets, Liabilities and Distribution. The idea behind these trusts is that property already held by the trustees is not owned personally at death, so it may not form part of that statement.

Whether that works in practice depends on the trust being properly set up, the assets actually being transferred, and how each asset is titled. A home, for example, involves land title filings and tax questions. A lawyer and accountant can confirm how your assets would be treated.

What the trustee has to do

Whoever you name as trustee takes on legal responsibilities under the Trustee Act. A trustee may invest trust property in any form of property or security in which a prudent investor might invest, but not in a manner inconsistent with the trust. When investing, the trustee must exercise the care, skill, diligence and judgment that a prudent investor would exercise.

Because these duties are real, think carefully about who you would trust in the role and whether they are willing to take it on.

Comparing the two

FeatureAlter ego trustJoint partner trust
SettlorAged 65 or olderAged 65 or older
Who receives incomeSettlor onlySettlor and spouse or common-law partner
Deemed disposition daySettlor's deathLater death of settlor and partner

What to do next

Frequently asked questions

Can anyone set up an alter ego trust?

No. The settlor must be aged 65 or older and the trust must be created after 1999. The settlor must receive all trust income during their lifetime and be the only person who can receive income or capital during that time.

Is the tax on gains cancelled?

No, it is deferred. For these trusts the deemed disposition day is the relevant death rather than the 21-year anniversary. Tax on accrued gains is deferred to that death.

Can couples use one trust?

Yes, a joint spousal or common-law partner trust is designed for that. The settlor and partner receive all income until the later of their deaths, and only they can receive income or capital before then.

Does the trust file its own tax return?

Generally yes, a T3 return is due no later than 90 days after the trust's year-end, and any balance owing should be paid in the same period. An accountant can confirm what applies to your trust.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. British Columbia laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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